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Halong Bay Weather

The best time of year to visit Halong Bay is during the spring or fall. Because the bay is situated in the northern part of the country, it can get colder in the fall and winter, and though you won't see extremes such as blizzards, it's still a lousy place to be when it gets cold. This area is one of the most popular destinations for vacations in Vietnam. Though there will be more tourists in the area in the spring and summer, the area is still a good place to go. In some situations, it's actually better that there are more people there. There will be more places to go for food and more entertainment in the area. When the weather is good you can go out in the bay on a junk, or a boat, and take a tour of the area. You can go swimming if you wish and just explore the beauty of the area. You can't do all of that in the fall and winter because it gets too cold. When you visit the area you should pack a swim suit, some shorts and a t-shirt. You should have enough clothes to keep you comfortable.

Majestic and mysterious, inspiring and imperious: words alone cannot do justice to the natural wonder that is Halong Bay. Imagine 3000 or more incredible islands rising from the emerald waters of the Gulf of Tonkin and you have a vision of breathtaking beauty. Halong Bay is pure art, a priceless collection of unfinished sculptures hewn from the hand of nature.

In 1994 it was designated a World Heri­tage site. Visitors can’t help but compare the magical, mystical landscape of limestone islets to Guilin in China and Krabi in southern Thailand, but in reality Halong Bay is more spectacular. These tiny islands are dotted with beaches and grottoes created by wind and waves, and have sparsely forested slopes ringing with birdsong.

Beyond the breathtaking vistas on a boat cruise through the bay, visitors to Halong come to explore the caves – some of which are beautifully illuminated for the benefit of tourists – and to hike in Cat Ba National Park. There are few real beaches in Halong Bay, but Lan Ha Bay (off the coast of Cat Ba Island) has more than 100 sandy strips.

Halong City is the gateway to Halong Bay but not the ideal introduction to this incredible World Heritage site. Developers have not been kind to the city and most visitors sensibly opt for tours that include sleeping on a boat in the bay. In short, Halong Bay is the attraction; Halong City is not.

As the number-one tourist attraction in the northeast, Halong Bay draws a steady stream of visitors year-round. From February to April the weather in this region is often cool and drizzly. The ensuing fog can make visibility low, but this adds an ethereal air to the place and the temperature rarely falls below 10°C. During the summer months tropical storms are frequent, and tourist boats may have to alter their itineraries, depending on the weather.

Halong Bay is the stuff of myths and naturally the Vietnamese have concocted one. Halong translates as ‘where the dragon descends into the sea’. Legend has it that the islands of Halong Bay were created by a great dragon that lived in the mountains. As it charged towards the coast, its flailing tail gouged out valleys and crevasses. When it finally plunged into the sea, the area filled with water, leaving only the pinnacles visible.

Dragons aside, the biggest threat to the bay may be from souvenir-hunting tourists. Rare corals and seashells are rapidly being stripped from the sea floor, and stalactites and stalagmites are being broken off from the caves. These items get turned into key rings, paperweights and ashtrays, which are on sale in the local souvenir shops. Obviously the fewer people buy, the less the local people will take to sell, so don’t encourage the trade.

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